From: Dan Carpenter <dan.carpenter@oracle.com>
To: axboe@fb.com
Cc: linux-block@vger.kernel.org
Subject: [bug report] blk-mq-sched: add framework for MQ capable IO schedulers
Date: Thu, 19 Jan 2017 10:32:38 +0300 [thread overview]
Message-ID: <20170119073238.GA9834@mwanda> (raw)
Hello Jens Axboe,
This is a semi-automatic email about new static checker warnings.
The patch bd166ef183c2: "blk-mq-sched: add framework for MQ capable
IO schedulers" from Jan 17, 2017, leads to the following Smatch
complaint:
block/elevator.c:234 elevator_init()
error: we previously assumed 'e' could be null (see line 229)
block/elevator.c
228
229 if (!e) {
^^
Null.
230 printk(KERN_ERR
231 "Default I/O scheduler not found. " \
232 "Using noop/none.\n");
233 if (q->mq_ops) {
234 elevator_put(e);
^^^^^^^^^^^^^^^
This will Oops.
235 return 0;
236 }
regards,
dan carpenter
next reply other threads:[~2017-01-19 7:32 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-19 7:32 Dan Carpenter [this message]
2017-01-19 14:11 ` [bug report] blk-mq-sched: add framework for MQ capable IO schedulers Jens Axboe
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